4-ft x 6-ft = 24 square feet
18-in x 18-in = 1.5-ft x 1.5-ft = 2.25 square feet
24/2.25 = 10 2/3
It would take 102/3 tiles to cover that area. Depending on the shape of
the area, some of the tiles may have to be cut up to fit it.
500 square feet = 500*12*12 square inches this will require 500*12*12/(18*18) tiles = 222.22 tiles. This assumes that all parts of cut tiles are used. If not, the exact dimensions of the area are required.
125
As a 18 sq ft room has area equal to 18*144=2592 sq inches, you need 2592/(18*18)=8 18 inch tiles.
Assuming you mean 18 inch by 18 inch, you will need 133 and 1/3 tiles.
18 10x10-inch tiles.
There are 144 18 square inch tiles in an area of 18 square feet.
500 square feet = 500*12*12 square inches this will require 500*12*12/(18*18) tiles = 222.22 tiles. This assumes that all parts of cut tiles are used. If not, the exact dimensions of the area are required.
236 18-inch tiles.
125
6 tiles; you'll have 2/3 of one tile left over.
As a 18 sq ft room has area equal to 18*144=2592 sq inches, you need 2592/(18*18)=8 18 inch tiles.
Assuming you mean 18 inch by 18 inch, you will need 133 and 1/3 tiles.
18 10x10-inch tiles.
You'll need 200 18-inch tiles.
12 tiles by 18 tiles or 216 tiles total
It depends on the units used for measuring the tiles. Obviously, the number of 18 inch x 18 inch tiles required will not be the same as 18 cm x 18 cm tiles. And if there were 18 yard x 18 yard tiles, you would need only 1.
18*18 is 324in2. This is 0.25 square yards. So you need 4 tiles